I felt it could have been balanced with a reduction in the stun duration, personally. I was able to micro to take out the ward, and the queen was not able to withstand the punishment of my hero, the Lord, but she could always run in, ward, stun, and knock my guys to half health before I could do anything. The problem was just the stun, not the ward IMO.
I also think part of the problem is the lack of +hp upgrades. The +armor and +damage does well to scale the footmen, but spells are not mitigated. They are balanced in footman vs. footman battles, but spellcaster spells become more effective without mitigation.
Honestly though, that's my only complaint from my single play.